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Data center · Facility

Announced

HydraVault data center in Chicago, Illinois

Updated Nov 3, 2026Sources: Compute Atlas; Server Country; EPA ECHO; Kapwork Grow tracker

Announced Oct 28, 2025, in Cook County. No permit on record yet.

No permit on record yet. First seen Aug 15, 2026.

Where

Chicago, Cook County, Illinois.

Exact site not public. Shown at township level.

ChicagoCook County
Reported capacity
20MW
Planned, as Compute Atlas (Aug 31, 2026) and Server Country (Sep 24, 2026) report it. 76,000 square feet, per Kapwork Grow tracker. May be planned, not energised, capacity.
Work it brings
Electrical, mechanical, low-voltage, site, fiber
The trades a data center build hires, from the site work to the last mile of fiber.
Who bills here
HydraVault
The operator, per Compute Atlas, Server Country and EPA ECHO. No public record names its general contractor yet. The carriers show here when a record names them.
  • Nearest other build

    Lambda Chicago EdgeConneX AI Factory

    2.2 miles away

  • Builds in Cook County

    16

    Published builds in the Kapwork Grow tracker, this one included. Published Nov 3, 2026.

  • Builds in Illinois

    41

    Proposed, approved, under construction or expanding, this one included. Kapwork Grow tracker, published Nov 3, 2026.

  • U.S. data center construction

    $84.95B a year

    August 2026, seasonally adjusted annual rate, preliminary. Up 73.2% from $49.05B in August 2025; 63.3% of private office construction. U.S. Census Bureau, C30, released Oct 1, 2026.

What this means for you

Same customers, bigger invoices.

The electrical, mechanical and fiber work on this campus bills HydraVault, its GC and the carriers you already know. Certify the invoices behind it, and funders compete to fund them.

An announced or permitted build is not a contract, an open bid or a purchase order.

Who your invoice goes to

  • HydraVaultOperator
  • General contractorNot named yet
  • CarriersNot named yet
  • UtilityNot named yet

Key facts

Stage
Under constructionCompute Atlas · Aug 31, 2026; Server Country · Sep 24, 2026
Reported capacity
20 MWCompute Atlas · Aug 31, 2026; Server Country · Sep 24, 2026
Reported building area
76,000 sq ftKapwork Grow tracker · Nov 2, 2026
Reported investment
$2.7Kapwork Grow tracker · Nov 2, 2026
Announced
Oct 28, 2025Compute Atlas · Aug 31, 2026
Construction start reported
Oct 28, 2025Compute Atlas · Aug 31, 2026
Expected completion
May 2027Server Country · Sep 24, 2026
Location
Chicago, Cook County, IllinoisCompute Atlas · Aug 31, 2026; Server Country · Sep 24, 2026; EPA ECHO · Sep 24, 2026
Location precision
Site footprint confirmedKapwork Grow tracker · Nov 2, 2026
Cooling
Closed loopKapwork Grow tracker · Nov 2, 2026
AI workload
Confirmed AI or machine-learning workloadCompute Atlas · Aug 31, 2026
Facility type
AI data centerKapwork Grow tracker · Nov 2, 2026
Incentives reported
Illinois Data Center Investment Program (sales/use tax exemption MOU) (Illinois) $16.9MKapwork Grow tracker · Nov 2, 2026
EPA air permit
No Classification In ICISEPA ECHO · Sep 24, 2026
EPA compliance status
No Violation IdentifiedEPA ECHO · Sep 24, 2026

What the public record lacks: the jobs, the general contractor's name and the utility.

Who's involved

Operator
HydraVaultCompute Atlas · Aug 31, 2026; Server Country · Sep 24, 2026; EPA ECHO · Sep 24, 2026
General contractor
Not named in a public record yet
Carriers
Appear here as the records name them

How far along it is

  1. · Compute Atlas

    Reported as announced

  2. · Compute Atlas

    Construction start reported

  3. · Kapwork's date

    First seen in the Kapwork Grow tracker (its first snapshot)

  4. · Server Country

    Expected completion

  5. Date not reported · Server Country

    Expected completion reported

Dates as reported. Not a bid calendar. A planned date is not evidence that work occurred. Dates marked Kapwork's date come from the tracker's own snapshots, not from the sources.

More builds

The Kapwork Grow tracker lists 41 published builds in Illinois, as published Nov 3, 2026; these are the ones linked to this record.

Questions this page answers

Is HydraVault Chicago under construction?
No permit record shows it yet, so this page prints it as announced. Compute Atlas (Aug 31, 2026) and Server Country (Sep 24, 2026) report it as under construction. The sources disagree: EPA ECHO reports operating.
Who is building HydraVault Chicago?
HydraVault is the operator. No public record names the general contractor yet. It shows here the day one does.
When is HydraVault Chicago expected to finish?
Server Country reports expected completion in May 2027. That is a reported target, not a schedule.
Which carriers serve HydraVault Chicago?
No public record names them yet. They show here when a filing does.
How do contractors on HydraVault Chicago get paid sooner?
The owner pays the general contractor, and the general contractor pays its subcontractors. Once your customer approves your invoice, certify it with Kapwork. Funders compete to fund it, so you don't wait for the payment date. Free for businesses. Kapwork doesn't lend and doesn't contact your customer.

Already invoice HydraVault?

Crews on a campus like this invoice the GC and the carriers in their own portals. Certify the unpaid invoices. Kapwork proves they're real so funders fund them sooner while the GC takes its time. Free for businesses.

  • Multiple offers
  • No notice of assignment
  • Free for businesses

Sources, updates and data

Compute Atlas · Server Country · EPA ECHO · Kapwork Grow tracker · U.S. Census C30

Where this comes from

What each source reports

  • Compute Atlas: Under construction, 20 MW
  • Server Country: Under construction, 20 MW, as “HydraVault - Chicago AI Data Center”
  • EPA ECHO: Operating, as “Hydravault LLC”

Updates

  • Date not reported: Expected completion reported. Server Country
  • May 2027: Expected completion. Server Country
  • Aug 15, 2026: First seen in the Kapwork Grow tracker (its first snapshot). Kapwork's date
  • Oct 28, 2025: Construction start reported. Compute Atlas
  • Oct 28, 2025: Reported as announced. Compute Atlas

Limitations and interpretation

  • This record is the Kapwork Grow tracker's merged view of a facility, from the tracker snapshot built 2026-11-02. Facts tagged KW are the tracker's resolved values; the per-source rows it was merged from are listed under Sources and on the tracker record.
  • Sources on this record: Compute Atlas: Kubiak, E. (2026). Compute Atlas [Data set]. https://doi.org/10.5281/zenodo.22284476 (CC BY 4.0) · Server Country, https://servercountry.org/data/ (CC BY 4.0) · US EPA Facility Registry Service via ECHO (public domain). Every source is licensed for commercial use with attribution.
  • An announced or permitted build is not a contract, an open bid or a purchase order.
  • Capacity figures are as reported by the cited sources and may describe planned rather than energised capacity.

“Not reported” means missing information, not zero. Completed and withdrawn records can remain available as historical records.

Nearest build: Haversine great-circle distance on the tracker latitude and longitude, in statute miles, rounded to 0.1. First-seen dates: first_seen: the earliest committed snapshot of data/dcfo.sqlite holding any of the facility's source keys (source:source_id), narrowed to the nightly run day by the alert sender's facility_new events when they are available. status_first_seen: the start of the unbroken run of snapshots, ending at this one, in which a facility sharing a source key had the current status, narrowed by the latest status_changed event to that status. Dates are Kapwork's, not the sources'.

What we don't know yet

  • The jobs, the general contractor's name and the utility.
  • The carriers that serve the campus.
  • How the operator and its GC pay their contractors: portal, terms, days to pay.

Spot an error? Tell us

Cite: Kapwork Grow, “HydraVault Chicago”, https://kapwork.com/grow/directory/datacenters/hydravault-chicago-il-dc_de9575a7b524, materially updated Nov 3, 2026.

Report an error on this page.

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